N.502 Too many backups on sundays

git-svn-id: http://svn.code.sf.net/p/itop/code/trunk@4483 a333f486-631f-4898-b8df-5754b55c2be0

datamodels/2.x/itop-backup/main.itop-backup.php

@@ -244,6 +244,7 @@ class BackupExec implements iScheduledProcess
 					{
 						break;
 					}
+					$iNextPos = false; // necessary on sundays
 				}
 			}